Rothshild's Slipper Orchid
Paphiopedilum rothschildianumUSDA | Grow Zone
10-12Outdoors all year in zones 10 to 12. Anywhere colder, keep it as a houseplant. Protect it below 40°F.
- Light
- Bright, indirect
- Water
- Every 7-10 days
- Humidity
- 50-70%
- Temperature
- 70-80°F (21-27°C)
- Difficulty
- Intermediate
- Growth
- Moderate
- Mature size
- 1-2 ft tall and wide
- Pets
- Non-toxic to pets
Paphiopedilum rothschildianum, known as Rothschild's Slipper Orchid, is a stunning orchid native to Borneo. Renowned for its unique slipper-shaped flowers, this orchid is a favorite among collectors and enthusiasts for its beauty and elegance.
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Ideal temperature
60-80°F is where it grows fastest. Below 40°F cold damage starts.
Spacing and harvest
- Mature size
- 1-2 ft tall and wide
- Plant apart
- 12-24 in
- Frost
- Tender: no frost
Everything it needs
9 essentials at a glance
Watering
Paphiopedilum rothschildianum prefers to be kept evenly moist but not soggy.
Water every 7-10 days, allowing the top inch of the potting mix to dry out between waterings. During the growing season (spring and summer), increase frequency slightly, while in the dormant period (fall and winter), reduce watering. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause leaf wilting and shriveling.
Light
This orchid thrives in bright, indirect light.
Ideally, it should receive about 10-12 hours of light daily, with some morning sun and filtered light during the afternoon. Avoid direct sunlight, as it can scorch the leaves. A north or east-facing window is often the best placement.
Soil
Paphiopedilum rothschildianum prefers a well-draining potting mix, typically composed of bark, perlite, and sphagnum moss.
The ideal pH range is between 5.5 and 6.5. Ensure the pot has good drainage holes to prevent water accumulation, which can lead to root rot.
Humidity
This orchid thrives in high humidity levels, ideally between 50-70%.
To increase humidity, consider using a humidity tray filled with water and pebbles, or mist the plant regularly. Signs of low humidity stress include browning leaf tips and wilting.
Temperature
Ideal temperatures range from 70-80°F (21-27°C) during the day and 60-65°F (15-18°C) at night.
It is hardy in USDA zones 10-12. Protect the plant from extreme heat or cold, as it is sensitive to temperature fluctuations.
Fertilizing
Use a balanced orchid fertilizer with an NPK ratio of 30-10-10, diluted to half strength.
Fertilize every 2-4 weeks during the growing season and reduce to once a month in the dormant period. Signs of nutrient deficiency include yellowing leaves and poor growth.
Pruning
Pruning is minimal; remove any dead or yellowing leaves as needed to maintain plant health.
Use sterilized scissors or pruning shears to prevent disease. Deadheading spent flowers can encourage new blooms.
Repotting
Repot every 1-2 years or when the potting mix breaks down.
Signs it needs repotting include roots growing out of the pot and poor drainage. Choose a pot that is 1-2 inches larger in diameter, gently remove the old mix, and re-pot in fresh orchid mix.
Propagation
Propagation is typically done through division.
Best timing is in spring after the blooming period. Carefully remove the plant from its pot, divide it into sections ensuring each has roots and at least one growth. Re-pot each section in fresh potting mix and water lightly.
When it's unhappy
Yellow leaves
Why it happens
Usually caused by over-watering or insufficient light.
How to fix it
Adjust watering schedule and ensure the plant receives adequate light.
Root rot
Why it happens
Excessive moisture and poor drainage.
How to fix it
Repot the plant in fresh, dry mix and reduce watering frequency.
Browning leaf tips
Why it happens
Low humidity levels.
How to fix it
Increase humidity through misting or using a humidity tray.
Wilting leaves
Why it happens
Under-watering or sudden temperature changes.
How to fix it
Water the plant thoroughly and maintain stable temperatures.
Poor flowering
Why it happens
Insufficient light or nutrient deficiency.
How to fix it
Increase light exposure and ensure regular fertilization.
Care through the year
Spring
Spring is the ideal time for repotting and fertilizing as the plant begins its growth cycle. Ensure it receives ample light as new growth appears.
Summer
During summer, maintain consistent watering and humidity levels. Fertilize every 2-4 weeks to support blooming.
Fall
In fall, reduce watering slightly as the plant enters dormancy. Continue to provide bright, indirect light.
Winter
In winter, maintain temperatures and humidity levels. Water less frequently, allowing the potting mix to dry out more between waterings.
Toxicity & Safety
Paphiopedilum rothschildianum is generally considered non-toxic to pets and children. However, ingestion of any part may cause mild gastrointestinal upset.
Good to know
How often should I water my Rothschild's Slipper Orchid?
Water your Paphiopedilum rothschildianum every 7-10 days, allowing the top inch of the potting mix to dry out between waterings.
What light conditions are best for Rothschild's Slipper Orchid?
This orchid prefers bright, indirect light for about 10-12 hours a day, avoiding direct sunlight to prevent leaf scorch.
How can I increase humidity for my orchid?
Increase humidity by misting the plant regularly or placing a humidity tray filled with water and pebbles underneath the pot.
When is the best time to repot my Rothschild's Slipper Orchid?
Repot your orchid every 1-2 years, ideally in spring after the blooming period, to refresh the potting mix and provide more space for growth.
What should I do if my orchid's leaves are turning yellow?
Yellow leaves can indicate over-watering or insufficient light. Adjust your watering schedule and ensure the plant receives adequate light.
How do I propagate Paphiopedilum rothschildianum?
Propagation is done through division in spring. Carefully divide the plant ensuring each section has roots and re-pot in fresh mix.
What type of fertilizer is best for Rothschild's Slipper Orchid?
Use a balanced orchid fertilizer with an NPK ratio of 30-10-10, diluted to half strength, every 2-4 weeks during the growing season.
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